[sdiy] More Drum ?'s. Replacing 566

[Paul Perry]

----- Original Message -----
From: "Bill Berzinskas"

> one thing i do have is some of the Microchip V-F converters..  although
they
> put out sq and ramp, if i could muster a triangle out of it, it should
work,
> ehh?

To make a triangle from a ramp, just shift the ramp to be from -5 to +5 say
& rectify.
As for the 556 and 566, one is easy to get & one is impossible.
Guess which one is in the Midwest designs?

paul perry melbourne australia